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<a name="boost.interprocess.flat_map_index"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class template flat_map_index</span></h2>
<p>boost::interprocess::flat_map_index</p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../interprocess/indexes_reference.html#header.boost.interprocess.indexes.flat_map_index_hpp" title="Header &lt;boost/interprocess/indexes/flat_map_index.hpp&gt;">boost/interprocess/indexes/flat_map_index.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MapConfig<span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="flat_map_index.html" title="Class template flat_map_index">flat_map_index</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">flat_map_index_aux</span><span class="special">::</span><span class="identifier">index_t</span><span class="special">&lt;</span> <span class="identifier">MapConfig</span> <span class="special">&gt;</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// <a class="link" href="flat_map_index.html#boost.interprocess.flat_map_indexconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="flat_map_index.html#idm25975-bb"><span class="identifier">flat_map_index</span></a><span class="special">(</span><a class="link" href="segment_manager_base.html" title="Class template segment_manager_base">segment_manager_base</a> <span class="special">*</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="flat_map_index.html#idm25966-bb">public member functions</a></span>
  <span class="keyword">void</span> <a class="link" href="flat_map_index.html#idm25967-bb"><span class="identifier">reserve</span></a><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">segment_manager_base</span><span class="special">::</span><span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="flat_map_index.html#idm25972-bb"><span class="identifier">shrink_to_fit</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.19.17.3.27.4.4"></a><h2>Description</h2>
<p>Index type based in flat_map. Just derives from flat_map and defines the interface needed by managed memory segments. </p>
<div class="refsect2">
<a name="id-1.3.19.17.3.27.4.4.3"></a><h3>
<a name="boost.interprocess.flat_map_indexconstruct-copy-destruct"></a><code class="computeroutput">flat_map_index</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><a name="idm25975-bb"></a><span class="identifier">flat_map_index</span><span class="special">(</span><a class="link" href="segment_manager_base.html" title="Class template segment_manager_base">segment_manager_base</a> <span class="special">*</span> segment_mngr<span class="special">)</span><span class="special">;</span></pre>Constructor. Takes a pointer to the segment manager. Can throw. </li></ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.19.17.3.27.4.4.4"></a><h3>
<a name="idm25966-bb"></a><code class="computeroutput">flat_map_index</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm25967-bb"></a><span class="identifier">reserve</span><span class="special">(</span><span class="keyword">typename</span> <span class="identifier">segment_manager_base</span><span class="special">::</span><span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>This reserves memory to optimize the insertion of n elements in the index. </li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm25972-bb"></a><span class="identifier">shrink_to_fit</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>This frees all unnecessary memory. </li>
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<td align="right"><div class="copyright-footer">Copyright © 2005-2015 Ion Gaztanaga<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
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